C3123223313331322121111331333133313231333132212111133221211113313331112212121   >>    C312322331333132212111133133313331323133313221211113322121111331333111221212   <<    C3123223313331322121111331333133313231333132212111133221211113313331112212123   >>      C3123223313331322121111331333133313231333132212111133221211113313331112212122   >>